Farming

Question 1

Adv of factory farming

Answer 1

• more efficient as less biomass is wasted by the animals in respiration
• can control food that the animals eat so it contains all nutrients needed

Question 2

Disadvantages of factory farming

Answer 2

• infectious diseases can spread more easily
  = prevented by antibiotics
• can make animals more stressed and likely to fight

Question 3

Ethical views of intensive farming

Answer 3

Animals should be raised in natural conditions and engage in normal behaviour

Question 4

How to make fishing sustainable (quotas)

Answer 4

• quotas
  = limit on number of fish caught per species
  = remaining fish can breed and bring population back to normal levels

Question 5

How to make fishing sustainable (net size)

Answer 5

Net size must be large enough that smaller, immature fish aren’t caught
= means these fish can develop into adults and reproduce

Question 6

Use of microorganisms in biotechnology

Answer 6

• produced by fungus
• grown on a glucose syrup in a fermentor
• biomass is harvested and purified before being made into products

Question 7

Advantages to micro protein

Answer 7

• suitable for vegetarians
• we can grow large amounts of it in a relatively small amount of space
  = efficient protein source